Trigonometry: Sine, Cosine & Tangent

Trigonometry

Cosine

Identify Sides of Right Triangles

1. ​Review1: Identifying Opposite sides

2. Review 2: Identifying Adjacent Sides

​Review

​Cosine of an Angle

 

Multiple Choice

What is the ratio for Cosine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

Multiple Choice

• 9/41

• 40/41

• 9/40

• 3/10

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Multiple Choice

Give the Ratio for COS X

• Adj/Hyp

• Opp/Adj

• Adj/Opp

• Opp/Hyp

Multiple Choice

Opposite leg of angle C

• 50

• 14

• 48

Multiple Choice

Adjacent leg to angle A

• 14

• 50

• 48

Multiple Choice

Give the Ratio for COS X

• Adj/Hyp

• Opp/Adj

• Adj/Opp

• Opp/Hyp

Multiple Choice

Give the Ratio for SIN X

• Opp/Adj

• Adj/Hyp

• Opp/Hyp

• Adj/Opp

Multiple Choice

From ∠C, what side is AB?

• Adjacent

• Hypotenuse

• Opposite

Multiple Choice

What is the ratio for Sine?

• Hyp/Opp

• Opp/Hyp

• Opp/Adj

• Adj/Opp

Multiple Choice

• 14/48

• 48/50

• 14/50

• 48/14

Multiple Choice

Give the Ratio for SIN X

• opp/adj
• Adj/hyp
• Opp/hyp
  
• adj/opp

Multiple Choice

• A

• B

• C

• D

Multiple Choice

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

Multiple Choice

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

• .4706

• 1.875

• .8824

• .5333

Multiple Choice

What is the side across from the right angle called?

• Leg

• Pythagoras

• Hypotenuse

• Altitude

Multiple Choice

Find the cos B

• 3/5

• 3/4

• 4/5

• 5/4

Multiple Choice

Find sin D

• 3/5

• 4/5

• 3/4

• 1/2

Multiple Choice

Find sin B

• 3/5

• 3/4

• 4/5

• 5/4

• 4/3

Multiple Choice

• 18/30 = 3/5

• 18/24 = 3/4

• 24/30 = 4/5

• 24/18 = 4/3

Multiple Choice

Find cos D

• 4/3

• 3/4

• 3/5

• 4/5

Multiple Choice

• 9/41

• 9/40

• 40/41

• 40/9

Multiple Choice

What ratio can you find for an angle when you have the adjacent side to the angle and the hypotenuse

• cosine

• sine

• tangent

• trigonometry

Multiple Choice

Which equation would you use to solve for x?

• sin 58 = x/19

• cos 58 = x/19

• sin 58 = 19/x

• cos 58 = 19/x

Multiple Choice

What is the correct equation?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

Multiple Choice

• 21/35

• 28/21

• 35/28

• 28/35

Trigonometry

Tangent

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• ​Trig Ratio (crossword)

• Trig Ration (maze)